Improvement in stump-extractors



JOHN S. SWANN.

improvement in Stump Extractors.

N0.118,981 Patenfed Sep.12,1871.v

UNITED STATES PATENT OEEIoE.

JOHN S. SWANN, OF KANAWHA COUNTY, WEST VIRGINIA.

IMPROVEMENT IN STUMP-EXTRACTORS.

To all whom it may concern:

Be it known that I, JOHN S. SWANN, of the county of Kanawha and State ofWest Virginia, h. ve invented a certain Machine for Lifting and RemovingBodies, Trees, Stones, &c., of which the following is a speciiication:

My invention relates to machines for extracting grubs, raising stones,and similar purposes; and the invention consists in a novel constructionof a portable frame and levers, as hereinafter more fully described.

Figure l represents a vertical section of my improved apparatus.

In constructing my improved machine I first provide a frame whichconsists of two parts, l l, each part being formed of two upright postsunited by rounds 4, 5, 7, and S, a portion of these rounds passingthrough the uprights of both parts, thus locking the parts iirmlytogether and making of it a single rigid iranie. Upon the top of thisframe I pivot alever, 2, which turns loosely upon the round 4, which isalso free to turn in its bearings in the frame so as to lessen thefriction of the working joints, this lever 2 being arrangedhorizontally, and provided on its shorter arm with a hook, n, near itsfulcrum or pivot, and also with a series of notches on its upper face,as indicated a-t 1l, l2, and 13. At its opposite end this lever' 2 hassecured to it a strong loop or band, e, through which I pass a secondlever, 3, this latter being free to slide to and fro through the band c,so that by drawing it out it forms an eX- tension ofthe lever 2, and byshoving it in until its inner end engages between the rounds 5 and 7 itlocks the lever 2 and renders it rigid with the frame. Above the lever 2I locate a round, 8, which has secured upon it a bolt or hook, o, asshown, for a purpose hereinafter described.

To use the apparatus it is placed over the grub, stone, or other articleto be raised, as represented in the drawing, and then I secure a chain,g, to the article, using the self-tightening clamp 14, or any similardevice, for that purpose. The chain is then extended upward and securedto the short arm of lever 2, either by hooking one of its links on thehook n or by passing it around the lever, as shown, near its fulcrum. Bypressing down on the long arm of the lever, especially with the part 3extended, a very powerful purchase is obtained, which will loosen thegrub or stone from its bed. Another chain, being secured to the grub, ispassed up and fastened to the round 8 by the bolt or pin 0, which thusholds the thing in position and prevents it from sprin ging back. Thechain g is then shoved further from the fulcrum, into any one of theseries ot' notches, when the article can be further elevated if desired.The sliding lever 3 is then shoved inward until its inner end is caughtand held between anyof the rounds below the i'ulcrum, which locks theframe and lever2 rigidly together, when the entire frame is swung over,as represented by the dotted lines, thus lifting the grub or stone fromits bed. I

If desired the fra-me may be mounted on runners or wheels forconvenience in transporting it from place to place.

The apparatus thus 1n ade is extremely simple, light, and strong, and isadmirably adapted to the wants of' farmers and others.

Having thus described my invention, what I claim is- Theherein-described amiaratus, consisting of the frame l l with the pivotedlever 2 and the. sliding lever 3, constructed and arranged to operatesubstantially as set forth.

JN O. S. SWANN.

Witnesses:

J. H. GONNELL, T. B. SWANN.

